package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args)  throws  Exception{
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        //连接创建声明
        Statement statement = connection.createStatement();
        String sql="update userinfo set password ='77777' where id=1";
        int i = statement.executeUpdate(sql);
        if (i>0){
            System.out.println("修改成功");
        } else if (i<0) {
            System.out.println("修改失败");
        }
        connection.close();

    }
}
